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. 2003 Oct;58(10):B879–B888. doi: 10.1093/gerona/58.10.B879

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Figure 5. — Map of GST-hNaDC-3 fusion protein sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Lane M: low-molecular-weight protein marker; Lane 1: total protein of Escherichia coli before induction; Lane 2: total protein of E. coli after induction; Lane 3: supernatant of burst E. coli; Lane 4: purified GST-hNaDC-3 protein; Lane 5: empty plasmid pGEX-5x-1 expressed 26 kD GST protein after induction